Question

Аквариум имеет форму прямоугольного параллелепипида.Его боковые стенки стеклянные.Определите площадь поверхности стекла, если длина аквариума 50см, ширина 25см, а высота 30см.

Answer 1

2(30*50+30*25)=
сама посчитаешь?

Answer 2

Calculation of the Glass Surface Area of the Aquarium

To calculate the surface area of the glass in a rectangular parallelepiped aquarium, we need to find the area of each of the six faces and then sum them up.

Given: - Length of the aquarium (l) = 50 cm - Width of the aquarium (w) = 25 cm - Height of the aquarium (h) = 30 cm

To find the surface area of the glass, we need to calculate the area of each face:

1. Top face: The top face has dimensions l x w. 2. Bottom face: The bottom face also has dimensions l x w. 3. Front face: The front face has dimensions l x h. 4. Back face: The back face also has dimensions l x h. 5. Left side face: The left side face has dimensions w x h. 6. Right side face: The right side face also has dimensions w x h.

To calculate the area of each face, we multiply the length by the width for the top and bottom faces, the length by the height for the front and back faces, and the width by the height for the left and right side faces.

Let's calculate the surface area of the glass:

1. Top face: l x w = 50 cm x 25 cm = 1250 cm² 2. Bottom face: l x w = 50 cm x 25 cm = 1250 cm² 3. Front face: l x h = 50 cm x 30 cm = 1500 cm² 4. Back face: l x h = 50 cm x 30 cm = 1500 cm² 5. Left side face: w x h = 25 cm x 30 cm = 750 cm² 6. Right side face: w x h = 25 cm x 30 cm = 750 cm²

Now, let's sum up the areas of all the faces to find the total surface area of the glass:

1250 cm² + 1250 cm² + 1500 cm² + 1500 cm² + 750 cm² + 750 cm² = 7000 cm²

Therefore, the surface area of the glass in the rectangular parallelepiped aquarium is 7000 cm².